Pre-Grant Publication Number: 20090129585
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Prior Art (2)
Title
Description
"This document describes a password-based content encryption mechanism for S/MIME. This is implemented as a new RecipientInfo type and is an extension to the RecipientInfo types currently defined in CMS [CMS]"
Title Federal Information Processing Standards Publication 197
ISBN
Description
The Advanced Encryption Standard (AES) specifies a FIPS-approved
cryptographic algorithm that can be used to protect electronic data. The AES algorithm is a
symmetric block cipher that can encrypt (encipher) and decrypt (decipher) information.
Encryption converts data to an unintelligible form called ciphertext; decrypting the ciphertext
converts the data back into its original form, called plaintext.
The AES algorithm is capable of using cryptographic keys of 128, 192, and 256 bits to encrypt
and decrypt data in blocks of 128 bits.
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